Practice dates and track your progress
Learn to calculate the day of the week for any between 1800 and 2200 using the Doomsday Algorithm. Track progress with personal times. Compare results with calculated values. Save custom mnemonics for special dates in the Doomsday List.
Showing 401–420 of 1,000 ranked alternatives.
Monte L Helm
Calculate pH, pOH, [H⁺], and [OH⁻]
Calculate pH, pOH, [H⁺], or [OH⁻] from any one value. Input concentration or ion activity to solve for missing variables. Automatically handles strong and weak acids/bases using provided Ka or Kb values.
![Kanji Memory Hint 1 [English] app icon](https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/c9/6e/ad/c96ead79-b3aa-7b83-eb97-6d4327971c82/AppIcon-0-0-1x_U007emarketing-0-5-0-85-220.jpeg/512x512bb.jpg)
金鹏 王
Set for dates and holidays
Set based on Gregorian or Lunar dates. Reschedule to future dates. Mark as completed or ignore them. View completion records. Receive alerts in advance. Set repeating for lunar years and months. Track holidays with date-specific notifications.
David Dalcu
Your pet with creative options
Generate pet names with options for male and female pets. Choose from modern, character-based, cutesy, or funny names. Save favorite names for future use. Supports kittens, puppies, fish, birds, and rabbits.
Chengdu Brown Fast Cafe Education Consulting Co., Ltd.
Study exam content and practice questions
Prepare for the ATI exam with practice questions covering all test sections. Review detailed explanations for answers. Track progress and identify weak areas. Access study guides and flashcards for key concepts.
Ralph Cos
Practice plots and techniques
Learn and practice techniques with structured challenge phases. Review and name card sequences. Track progress through repetitive drills. Access detailed explanations of advanced magic concepts. Sync with other apps in the technical learning suite.
Ahancer Company Limited
With visual aids and mnemonics
And recall N4-N5 using visual aids and mnemonic techniques. Track word retention with a memory aid system that sets optimal review times. Practice with interactive flashcards and quizzes to reinforce vocabulary retention.
Jirou Fukuda
Calculate functions with any number input
Calculate mathematical functions with precise fractional results using square roots. Input integers, rational, or irrational numbers. Convert results to decimal. Compute f(α), f(β), and their sum for two variable inputs.
Dominik Gyecsek
Predict lifespan based on health data
Calculate using an AI algorithm that analyzes 38 health and lifestyle factors. Input data on physical health, habits, and medical history. Receive an estimated lifespan and insights to guide health decisions.
Takao Ichimura
Calculate tax from base or inclusive price
Allows users to input prices and calculate tax amounts. Users can specify tax rates and view results for tax-inclusive, base price, and tax. Adjust tax rates directly and see calculated values displayed in separate columns.
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